HYDRO-Trap Operator’s Manual
4-2 General Maintenance
TROUBLESHOOTING
Notes About Oil
• Hydraulic oil must be kept clean and dry to work
correctly. Contamination causes wear and can
cause valves to stick. Do not remove fill plug without
cleaning the area around the hole. In wet conditions
use a rag to wipe excess water off the top of the plug
and reservoir before operating traps.
• For oil to go out to the cylinders air needs to be
allowed to enter the reservoir through the fill plug
vent. Keep the top of the reservoir clear of debris and
wipe clean often. Remove fill plug and clean vent as
needed.
• Correct oil must be used for acceptable performance
and system life. Oil must be mineral based with
a viscosity and must be between 10 and 100 cSt
(mm^2/s) at ambient outdoor operating temperatures.
Oil thinner than 10 cSt will damage the pump. Oil
thicker than 100 cSt will reduce power available to
open traps and can cause the power breaker to trip.
Your system is supplied pre-filled with Petro-Canada
Hydrex MV Artic 15 hydraulic fluid, which should give
good performance from -20 to 120º F (-30 to 50º C)
for operation outside this temperature range, or with
other fluids, consult with Wilson Trailer Co. Service
department.
Potential Issues & Resolution Procedures
No traps operate with remote or
switches on the side of the trailer.
Locate the receiver (small black box with an antenna).
Does the red light in the upper corner flash on and off?
If nothing lights up:
• Check for 12v on the center pin of the 7-way
connector to the front of the trailer.
• Check that the ABS system is getting power. The ABS
light at the rear of the trailer should power on for a
few seconds when the 7-way is connected to power.
If ok:
• Check for 12v to the receiver power connection.
Follow the in-board harness from the bottom of the
receiver to where it divides into several wires. The red
wire with a male pin should be connected to a wire
that leads to the connection that taps into the ABS
power (blue wire) near where the valve control plugs
into the harness. If ok:
